v=a*b*c
v=3m*4,5m*2,5m
v=33,75m3
v=33750dm3
33750dm3 powietrza------100%
xdm3 tlenu------------------21%
x = 7087,5dm3 tlenu
v=7087,5dm3
d=1,309g/dm3
m=v*d
m=7087,5*1,309
m = 9277,5g
m = 9,3kg tlenu
V=a*b*c
V=3m*4,5m*2,5m
V=33,75m³
0,21*33,75m³=7,0875m³=7087,5dm³
V=7087,5dm³
d=1,309g/dm³
m=?
d=m/V /*V
m=d*V
m=1,309g/dm³*7087dm³
m=9277,5g≈9,3kg
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v=a*b*c
v=3m*4,5m*2,5m
v=33,75m3
v=33750dm3
33750dm3 powietrza------100%
xdm3 tlenu------------------21%
x = 7087,5dm3 tlenu
v=7087,5dm3
d=1,309g/dm3
m=v*d
m=7087,5*1,309
m = 9277,5g
m = 9,3kg tlenu
V=a*b*c
V=3m*4,5m*2,5m
V=33,75m³
0,21*33,75m³=7,0875m³=7087,5dm³
V=7087,5dm³
d=1,309g/dm³
m=?
d=m/V /*V
m=d*V
m=1,309g/dm³*7087dm³
m=9277,5g≈9,3kg